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- source: Getty Thesaurus of Geographic Names
- source: Family History Library Catalog
- the text in this section is copied from an article in Wikipedia
Sioux County is a county located in the U.S. state of North Dakota. As of the 2010 census, the population was 4,153. Its county seat is Fort Yates.
The county lies entirely within the Standing Rock Indian Reservation, forming the northernmost 30 percent of the reservation. (The balance of the reservation is in South Dakota). It is the only county in North Dakota that is entirely within an Indian reservation.
The county was created by proclamation of Governor Louis B. Hanna on September 3, 1914 and named after the Native Americans who live on the reservation. The county government was first organized on September 12, 1914; Fort Yates has always been the county seat.
Timeline
| Date | Event | Source
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| 1902 | Birth records recorded | Source:Red Book: American State, County, and Town Sources
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| 1914 | County formed | Source:Red Book: American State, County, and Town Sources
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| 1915 | Court records recorded | Source:Red Book: American State, County, and Town Sources
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| 1915 | Land records recorded | Source:Red Book: American State, County, and Town Sources
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| 1915 | Probate records recorded | Source:Red Book: American State, County, and Town Sources
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| 1916 | Marriage records recorded | Source:Red Book: American State, County, and Town Sources
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| 1920 | First census | Source:Population of States and Counties of the United States: 1790-1990
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| 1920 | No significant boundary changes after this year | Source:Population of States and Counties of the United States: 1790-1990
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Population History
- source: Source:Population of States and Counties of the United States: 1790-1990
| Census Year | Population
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| 1920 | 3,308
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| 1930 | 4,687
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| 1940 | 4,419
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| 1950 | 3,696
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| 1960 | 3,662
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| 1970 | 3,632
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| 1980 | 3,620
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| 1990 | 3,761
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Research Tips
External links
www.rootsweb.com/~ndsioux/
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